Two US students are suing a film studio claiming they were duped into appearing in spoof movie Borat starring Sacha Baron Cohen as a Kazakh journalist.

The unknown plaintiffs are seen making sexist and racist remarks in Borat: Cultural Learnings of America For Make Benefit Glorious Nation of Kazakhstan.

Legal papers said the two men "engaged in behaviour that they otherwise would not have engaged in".

Spokesman for 20th Century Fox Gregg Brilliant said the case "has no merit".

The men are identified in the film as two fraternity members from a South Carolina university.

'Humiliation'

They are not named in the case "to protect themselves from any additional and unnecessary embarrassment".

According to legal documents, a production crew took the pair to a bar to drink and "loosen up" before taking part in a documentary they were told would be shown outside the US.

The film "made plaintiffs the object of ridicule, humiliation, mental anguish and emotional and physical distress, loss of reputation, goodwill and standing in the community," the papers stated.

British comedian Cohen appears in the film as an apparently naive reporter whose enthusiastic offensiveness either leaves his US interviewees in shock, or persuades them to reveal a little too much of their own prejudices.

As well as Fox, the two men are also suing three other production companies.

The film is currently at the top of the box office charts in North America and the UK.